1. Product Overview
The ZS-11 (PRO) is a high-strength multi-point temperature monitoring cable specially designed for coal silos, pulverized-coal silos, and other bulk-material storage facilities subject to high mechanical loads. It is suitable for coal silos with heights ranging from approximately 5 to 40 metres.
The cable incorporates a dual-layer, bidirectional high-carbon steel wire load-bearing structure. A total of 69 high-carbon steel wires are arranged in two counter-wound layers of 35 + 34 wires, providing a tensile capacity of no less than 18 tonnes.
The temperature sensors and signal conductors are completely embedded inside the cable. A metal flexible tube provides internal support and compression protection, helping prevent damage to the sensors and conductors caused by coal lumps, coal dust, and material pressure.
A single ZS-11 (PRO) cable can be equipped with 1 to 100 temperature sensing points. It continuously monitors temperature changes at different depths inside the coal silo, providing reliable data for spontaneous-combustion warning, abnormal temperature-rise analysis, and coal-storage safety management.
2. Applications
The ZS-11 (PRO) is mainly suitable for:
- Raw-coal silos
- Clean-coal silos
- Pulverized-coal silos
- Bulk-coal storage facilities at ports
- Other high-pressure and high-abrasion bulk-material silos
The recommended silo height is 5–40 m. The actual cable length, number of sensing points, and sensing-point spacing should be determined according to the silo structure, material level, and monitoring requirements.
| ZS-11 (PRO) | |
| Multi-Point Temperature Monitoring Cable for Coal Silos | |
| 5–40 m | |
| −40℃ to +120℃ | |
| ±0.5℃; higher-accuracy versions available | |
| 100 points | |
| Two-conductor 1-Wire digital communication | |
| Single-bus digital signal | |
| 3–5.5 VDC, supplied by the data collector | |
| Approximately 26.5–27 mm | |
| 69 | |
| Steel-wire structure | 35 + 34 dual-layer, bidirectional winding |
| No less than 18 tonnes | |
| IP68 | |
| High-strength, wear-resistant, low-friction polymer | |
| 40 m | |
| Maximum extension-cable length | Approximately 500 m, depending on site conditions |
| Approximately 1.5 mA at 5 VDC | |
| At least 5 years | |
| Digital temperature data collector or coal-silo monitoring system | |
| Explosion-protection option | Explosion-protected versions available according to project requirements |
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